diff --git a/src/docs/glossary.tex b/src/docs/glossary.tex
index f1cf358..e0d379c 100644
--- a/src/docs/glossary.tex
+++ b/src/docs/glossary.tex
@@ -118,6 +118,13 @@
     }
 }
 
+\newglossaryentry{pm}{
+    name=package manager,
+    description={
+        TODO
+    }
+}
+
 \newglossaryentry{sac}{
     name=Software Application Container,
     description={
diff --git a/src/docs/parts/research/research.tex b/src/docs/parts/research/research.tex
index 4d6bc12..133aab7 100644
--- a/src/docs/parts/research/research.tex
+++ b/src/docs/parts/research/research.tex
@@ -1,7 +1,12 @@
 % // vim: set ft=tex:
+\chapter{Topic Refinement}
 
 \chapter{Criteria}
+This chapter explains the criteria for evaluating available \glspl{pm} for their potential to be part of the developed solution.
 
+\section{Specification Of Complete}
+
+\section{Binary- and Source Package Support}
 
 \section{Installation and Update Mechanism}
 
@@ -13,6 +18,7 @@
 
 \section{Package Repositories}
 
+\section{Efficiency}
 
 \chapter{Available Package Managers (and Build Managers)}